WHITE PLAINS, N.Y. — Federal prosecutors have charged a dozen reputed gang members with terrorizing suburban New York City, including killing two teenagers.

An indictment unsealed Thursday says the members of a street gang called “The Goonies” or “The Goon Squad” waged turf wars in Mount Vernon, New York, through violence and murder with illegal guns and sold drugs.

They also are accused of wire and bank fraud and have been charged with conspiracy, racketeering, murder and other crimes. They have been accused of killing a rival gang member and another young man, both 13 years old.

According to the indictment, the gang promoted themselves on Facebook and YouTube, proclaiming membership in the gang and photographing themselves with other gang members. They flashed signs and wore certain clothing that said “Goonies” or “GS.”